Evidence supporting the use of: Ligusticum
For the health condition: Colds (with fever)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Ligusticum (commonly known as Ligusticum porteri or "Osha root") has a long history of traditional use in North American Indigenous and traditional herbal medicine for treating respiratory ailments, including colds with fever. The root is often prepared as a tea, tincture, or decoction and has been used to help manage symptoms such as congestion, cough, and fever. Historical records and ethnobotanical surveys document its use by various Native American groups as a remedy for colds, flu, and bronchial infections. The traditional rationale is based on observed effects and empirical knowledge passed down through generations.

However, current scientific validation is limited. While some laboratory studies suggest Ligusticum extracts may have mild antimicrobial or anti-inflammatory properties, there is a lack of robust human clinical trials to confirm efficacy for treating colds with fever. Most evidence remains anecdotal or based on traditional practice rather than on controlled scientific study. Therefore, its use for colds with fever is primarily justified by tradition, with modest supporting evidence (rating: 2).

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